Mostly clear. Lows in the upper 70s. Southeast winds 10 to 15 mph until early morning becoming light.
Tuesday
Partly cloudy in the morning then clearing. Highs around 100. Southeast winds around 10 mph shifting to the south 15 to 20 mph in the late morning and afternoon. Heat index readings 105 to 108.
Mostly clear in the evening then becoming partly cloudy. Lows in the upper 70s. South winds 10 to 15 mph. Heat
Wednesday
Partly cloudy. Highs in the upper 90s. South winds 10 to 15 mph shifting to the southeast around 20 mph late in the afternoon. Heat index readings 105 to 110 in the afternoon.
Sunny in the morning then becoming partly cloudy. Highs in the mid 90s. Heat index readings 105 to 108 in the afternoon.
Thursday Night
Clear in the evening then becoming partly cloudy. Lows in the mid 70s.
Friday
Mostly cloudy. Chance of thunderstorms. Highs in the mid 90s. Chance of rain 40 percent.
Friday Night
Cloudy in the evening then becoming mostly cloudy. Slight chance of thunderstorms in the evening. Lows in the lower 70s. Chance of rain 20 percent.
Saturday
Mostly cloudy. Chance of thunderstorms in the morning...then slight chance of thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 30 percent. Heat index readings 105 to 106 in the afternoon.
Saturday Night
Mostly cloudy. Lows in the mid 70s.
Sunday
Mostly cloudy. Slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.
... Heat advisory remains in effect until 7 PM CDT this evening...
A combination of high temperatures with high relative humidity will produce widespread heat index values of 110 to 115 degrees across the Rio Grande Valley this afternoon. Overnight low temperatures will only lower to near 80.
Precautionary/preparedness actions...
Managers of personnel working outside this afternoon should be aware of the need for plenty of breaks and ample water and rest for workers.
Children... the elderly and people with chronic ailments are usually the first to suffer from excessive heat. Cramps or in extreme cases heat exhaustion and heat stroke can result from prolonged exposure to these oppressive conditions. Please take the responsibility of checking on people who may be at risk today and Monday.
A heat advisory is issued when the heat index... a measure of how it feels when temperature and humidity are combined... equals or exceeds 111 for 2 hours or more during the day... and observed nighttime temperatures remain 75 degrees or above.